In the legal documents - filed by Grigorieva without support from a lawyer - and obtained by TMZ, she accuses Ron Litz and Daniel Horowitz of negligently advising her to sign off on a bad deal in 2011.

According to the lawsuit, the deal she signed forbids her from pursuing any future legal action against Gibson regarding their child without jeopardising the monetary settlement she made from the actor.

As part of her deal with the father of her child, he had agreed to pay her $750,000 (£472,500) in cash and provide a house for her and their daughter Lucia until Lucia turns 18. She was also advised to sign a legal document that divested her of all ownership rights to her house.

Grigorieva is demanding unspecified damages in her case against her former legal representatives.

However, Horowitz commented to TMZ: "Why can't she just live her life normally and have a good life, raise the kid, live in the house, make music, be happy?

"Why does she always have to be in a struggle - especially with people who care the most about her?"